Conduit Requirement

Wired permanent bathroom light this weekend...had been using a pigtail for temporary construction lighting. This light is switched conventionally (no switch loop) and gets power though the load side of a GFCI outlet, and shares the triple box with outlet and fan switch. Didn't bother to switch the circuit breaker off, since the wires to the new light were definately switched OFF. During the wiring of the light, I naturally held the stripped ends of both black and white wires, and the EGC wire while straightening them...and the GFCI breaker popped, but I did not get shocked. So the GFCI must sense un-natural grounding even if there is no power to the protected appliance. Also wired the OTHER bathroom light, which gets power from ANOTHER GFCI protected circuit via an oulet in the garage, and is also conventionally switched. Same thing, go to put in the bulb...no light. GFCI breaker had popped! This , BTW, was all inspected at rough-in and passed.

Been having some dryer problems, see electrical appliences forum if interested. I think now that it is more of an electrical problem than an applience problem. On this dryer outlet i get a reading across the black and red but nothing between the white and red or the white and black. I have a cheap voltage tester that just has lights that come on if there is current.. On the dryer when plugged is , I have the little light bulb comes on inside the dryer but other than that I have nothing. Any help would be much appreciated Thanks Griff